<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>字符串类型</title>
</head>
<script>
    var box = 10;
//    console.log(box.toString(2));
//    console.log(box.toString(8));
//    console.log(box.toString(16));
    console.log("1"+(2+3));
    console.log(2+3+"1");
    console.log(2+"1"+3);


</script>
<body>

</body>
</html>